﻿//! moment.js
//! version : 2.5.1
//! authors : Tim Wood, Iskren Chernev, Moment.js contributors
//! license : MIT
//! momentjs.com

(function(undefined) {

	/************************************
	    Constants
	************************************/

	var moment,
		VERSION = "2.5.1",
		global = this,
		round = Math.round,
		i,

		YEAR = 0,
		MONTH = 1,
		DATE = 2,
		HOUR = 3,
		MINUTE = 4,
		SECOND = 5,
		MILLISECOND = 6,

		// internal storage for language config files
		languages = {},

		// moment internal properties
		momentProperties = {
			_isAMomentObject: null,
			_i: null,
			_f: null,
			_l: null,
			_strict: null,
			_isUTC: null,
			_offset: null, // optional. Combine with _isUTC
			_pf: null,
			_lang: null // optional
		},

		// check for nodeJS
		hasModule = (typeof module !== 'undefined' && module.exports && typeof require !== 'undefined'),

		// ASP.NET json date format regex
		aspNetJsonRegex = /^\/?Date\((\-?\d+)/i,
		aspNetTimeSpanJsonRegex = /(\-)?(?:(\d*)\.)?(\d+)\:(\d+)(?:\:(\d+)\.?(\d{3})?)?/,

		// from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
		// somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
		isoDurationRegex = /^(-)?P(?:(?:([0-9,.]*)Y)?(?:([0-9,.]*)M)?(?:([0-9,.]*)D)?(?:T(?:([0-9,.]*)H)?(?:([0-9,.]*)M)?(?:([0-9,.]*)S)?)?|([0-9,.]*)W)$/,

		// format tokens
		formattingTokens = /(\[[^\[]*\])|(\\)?(Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|mm?|ss?|S{1,4}|X|zz?|ZZ?|.)/g,
		localFormattingTokens = /(\[[^\[]*\])|(\\)?(LT|LL?L?L?|l{1,4})/g,

		// parsing token regexes
		parseTokenOneOrTwoDigits = /\d\d?/, // 0 - 99
		parseTokenOneToThreeDigits = /\d{1,3}/, // 0 - 999
		parseTokenOneToFourDigits = /\d{1,4}/, // 0 - 9999
		parseTokenOneToSixDigits = /[+\-]?\d{1,6}/, // -999,999 - 999,999
		parseTokenDigits = /\d+/, // nonzero number of digits
		parseTokenWord = /[0-9]*['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+|[\u0600-\u06FF\/]+(\s*?[\u0600-\u06FF]+){1,2}/i, // any word (or two) characters or numbers including two/three word month in arabic.
		parseTokenTimezone = /Z|[\+\-]\d\d:?\d\d/gi, // +00:00 -00:00 +0000 -0000 or Z
		parseTokenT = /T/i, // T (ISO separator)
		parseTokenTimestampMs = /[\+\-]?\d+(\.\d{1,3})?/, // 123456789 123456789.123

		//strict parsing regexes
		parseTokenOneDigit = /\d/, // 0 - 9
		parseTokenTwoDigits = /\d\d/, // 00 - 99
		parseTokenThreeDigits = /\d{3}/, // 000 - 999
		parseTokenFourDigits = /\d{4}/, // 0000 - 9999
		parseTokenSixDigits = /[+-]?\d{6}/, // -999,999 - 999,999
		parseTokenSignedNumber = /[+-]?\d+/, // -inf - inf

		// iso 8601 regex
		// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
		isoRegex = /^\s*(?:[+-]\d{6}|\d{4})-(?:(\d\d-\d\d)|(W\d\d$)|(W\d\d-\d)|(\d\d\d))((T| )(\d\d(:\d\d(:\d\d(\.\d+)?)?)?)?([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/,

		isoFormat = 'YYYY-MM-DDTHH:mm:ssZ',

		isoDates = [
			['YYYYYY-MM-DD', /[+-]\d{6}-\d{2}-\d{2}/],
			['YYYY-MM-DD', /\d{4}-\d{2}-\d{2}/],
			['GGGG-[W]WW-E', /\d{4}-W\d{2}-\d/],
			['GGGG-[W]WW', /\d{4}-W\d{2}/],
			['YYYY-DDD', /\d{4}-\d{3}/]
		],

		// iso time formats and regexes
		isoTimes = [
			['HH:mm:ss.SSSS', /(T| )\d\d:\d\d:\d\d\.\d{1,3}/],
			['HH:mm:ss', /(T| )\d\d:\d\d:\d\d/],
			['HH:mm', /(T| )\d\d:\d\d/],
			['HH', /(T| )\d\d/]
		],

		// timezone chunker "+10:00" > ["10", "00"] or "-1530" > ["-15", "30"]
		parseTimezoneChunker = /([\+\-]|\d\d)/gi,

		// getter and setter names
		proxyGettersAndSetters = 'Date|Hours|Minutes|Seconds|Milliseconds'.split('|'),
		unitMillisecondFactors = {
			'Milliseconds': 1,
			'Seconds': 1e3,
			'Minutes': 6e4,
			'Hours': 36e5,
			'Days': 864e5,
			'Months': 2592e6,
			'Years': 31536e6
		},

		unitAliases = {
			ms: 'millisecond',
			s: 'second',
			m: 'minute',
			h: 'hour',
			d: 'day',
			D: 'date',
			w: 'week',
			W: 'isoWeek',
			M: 'month',
			y: 'year',
			DDD: 'dayOfYear',
			e: 'weekday',
			E: 'isoWeekday',
			gg: 'weekYear',
			GG: 'isoWeekYear'
		},

		camelFunctions = {
			dayofyear: 'dayOfYear',
			isoweekday: 'isoWeekday',
			isoweek: 'isoWeek',
			weekyear: 'weekYear',
			isoweekyear: 'isoWeekYear'
		},

		// format function strings
		formatFunctions = {},

		// tokens to ordinalize and pad
		ordinalizeTokens = 'DDD w W M D d'.split(' '),
		paddedTokens = 'M D H h m s w W'.split(' '),

		formatTokenFunctions = {
			M: function() {
				return this.month() + 1;
			},
			MMM: function(format) {
				return this.lang().monthsShort(this, format);
			},
			MMMM: function(format) {
				return this.lang().months(this, format);
			},
			D: function() {
				return this.date();
			},
			DDD: function() {
				return this.dayOfYear();
			},
			d: function() {
				return this.day();
			},
			dd: function(format) {
				return this.lang().weekdaysMin(this, format);
			},
			ddd: function(format) {
				return this.lang().weekdaysShort(this, format);
			},
			dddd: function(format) {
				return this.lang().weekdays(this, format);
			},
			w: function() {
				return this.week();
			},
			W: function() {
				return this.isoWeek();
			},
			YY: function() {
				return leftZeroFill(this.year() % 100, 2);
			},
			YYYY: function() {
				return leftZeroFill(this.year(), 4);
			},
			YYYYY: function() {
				return leftZeroFill(this.year(), 5);
			},
			YYYYYY: function() {
				var y = this.year(),
					sign = y >= 0 ? '+' : '-';
				return sign + leftZeroFill(Math.abs(y), 6);
			},
			gg: function() {
				return leftZeroFill(this.weekYear() % 100, 2);
			},
			gggg: function() {
				return leftZeroFill(this.weekYear(), 4);
			},
			ggggg: function() {
				return leftZeroFill(this.weekYear(), 5);
			},
			GG: function() {
				return leftZeroFill(this.isoWeekYear() % 100, 2);
			},
			GGGG: function() {
				return leftZeroFill(this.isoWeekYear(), 4);
			},
			GGGGG: function() {
				return leftZeroFill(this.isoWeekYear(), 5);
			},
			e: function() {
				return this.weekday();
			},
			E: function() {
				return this.isoWeekday();
			},
			a: function() {
				return this.lang().meridiem(this.hours(), this.minutes(), true);
			},
			A: function() {
				return this.lang().meridiem(this.hours(), this.minutes(), false);
			},
			H: function() {
				return this.hours();
			},
			h: function() {
				return this.hours() % 12 || 12;
			},
			m: function() {
				return this.minutes();
			},
			s: function() {
				return this.seconds();
			},
			S: function() {
				return toInt(this.milliseconds() / 100);
			},
			SS: function() {
				return leftZeroFill(toInt(this.milliseconds() / 10), 2);
			},
			SSS: function() {
				return leftZeroFill(this.milliseconds(), 3);
			},
			SSSS: function() {
				return leftZeroFill(this.milliseconds(), 3);
			},
			Z: function() {
				var a = -this.zone(),
					b = "+";
				if (a < 0) {
					a = -a;
					b = "-";
				}
				return b + leftZeroFill(toInt(a / 60), 2) + ":" + leftZeroFill(toInt(a) % 60, 2);
			},
			ZZ: function() {
				var a = -this.zone(),
					b = "+";
				if (a < 0) {
					a = -a;
					b = "-";
				}
				return b + leftZeroFill(toInt(a / 60), 2) + leftZeroFill(toInt(a) % 60, 2);
			},
			z: function() {
				return this.zoneAbbr();
			},
			zz: function() {
				return this.zoneName();
			},
			X: function() {
				return this.unix();
			},
			Q: function() {
				return this.quarter();
			}
		},

		lists = ['months', 'monthsShort', 'weekdays', 'weekdaysShort', 'weekdaysMin'];

	function defaultParsingFlags() {
		// We need to deep clone this object, and es5 standard is not very
		// helpful.
		return {
			empty: false,
			unusedTokens: [],
			unusedInput: [],
			overflow: -2,
			charsLeftOver: 0,
			nullInput: false,
			invalidMonth: null,
			invalidFormat: false,
			userInvalidated: false,
			iso: false
		};
	}

	function padToken(func, count) {
		return function(a) {
			return leftZeroFill(func.call(this, a), count);
		};
	}

	function ordinalizeToken(func, period) {
		return function(a) {
			return this.lang().ordinal(func.call(this, a), period);
		};
	}

	while (ordinalizeTokens.length) {
		i = ordinalizeTokens.pop();
		formatTokenFunctions[i + 'o'] = ordinalizeToken(formatTokenFunctions[i], i);
	}
	while (paddedTokens.length) {
		i = paddedTokens.pop();
		formatTokenFunctions[i + i] = padToken(formatTokenFunctions[i], 2);
	}
	formatTokenFunctions.DDDD = padToken(formatTokenFunctions.DDD, 3);

	/************************************
	    Constructors
	************************************/

	function Language() {

	}

	// Moment prototype object
	function Moment(config) {
		checkOverflow(config);
		extend(this, config);
	}

	// Duration Constructor
	function Duration(duration) {
		var normalizedInput = normalizeObjectUnits(duration),
			years = normalizedInput.year || 0,
			months = normalizedInput.month || 0,
			weeks = normalizedInput.week || 0,
			days = normalizedInput.day || 0,
			hours = normalizedInput.hour || 0,
			minutes = normalizedInput.minute || 0,
			seconds = normalizedInput.second || 0,
			milliseconds = normalizedInput.millisecond || 0;

		// representation for dateAddRemove
		this._milliseconds = +milliseconds +
			seconds * 1e3 + // 1000
			minutes * 6e4 + // 1000 * 60
			hours * 36e5; // 1000 * 60 * 60
		// Because of dateAddRemove treats 24 hours as different from a
		// day when working around DST, we need to store them separately
		this._days = +days +
			weeks * 7;
		// It is impossible translate months into days without knowing
		// which months you are are talking about, so we have to store
		// it separately.
		this._months = +months +
			years * 12;

		this._data = {};

		this._bubble();
	}

	/************************************
	    Helpers
	************************************/

	function extend(a, b) {
		for (var i in b) {
			if (b.hasOwnProperty(i)) {
				a[i] = b[i];
			}
		}

		if (b.hasOwnProperty("toString")) {
			a.toString = b.toString;
		}

		if (b.hasOwnProperty("valueOf")) {
			a.valueOf = b.valueOf;
		}

		return a;
	}

	function cloneMoment(m) {
		var result = {},
			i;
		for (i in m) {
			if (m.hasOwnProperty(i) && momentProperties.hasOwnProperty(i)) {
				result[i] = m[i];
			}
		}

		return result;
	}

	function absRound(number) {
		if (number < 0) {
			return Math.ceil(number);
		} else {
			return Math.floor(number);
		}
	}

	// left zero fill a number
	// see http://jsperf.com/left-zero-filling for performance comparison
	function leftZeroFill(number, targetLength, forceSign) {
		var output = '' + Math.abs(number),
			sign = number >= 0;

		while (output.length < targetLength) {
			output = '0' + output;
		}
		return (sign ? (forceSign ? '+' : '') : '-') + output;
	}

	// helper function for _.addTime and _.subtractTime
	function addOrSubtractDurationFromMoment(mom, duration, isAdding, ignoreUpdateOffset) {
		var milliseconds = duration._milliseconds,
			days = duration._days,
			months = duration._months,
			minutes,
			hours;

		if (milliseconds) {
			mom._d.setTime(+mom._d + milliseconds * isAdding);
		}
		// store the minutes and hours so we can restore them
		if (days || months) {
			minutes = mom.minute();
			hours = mom.hour();
		}
		if (days) {
			mom.date(mom.date() + days * isAdding);
		}
		if (months) {
			mom.month(mom.month() + months * isAdding);
		}
		if (milliseconds && !ignoreUpdateOffset) {
			moment.updateOffset(mom);
		}
		// restore the minutes and hours after possibly changing dst
		if (days || months) {
			mom.minute(minutes);
			mom.hour(hours);
		}
	}

	// check if is an array
	function isArray(input) {
		return Object.prototype.toString.call(input) === '[object Array]';
	}

	function isDate(input) {
		return Object.prototype.toString.call(input) === '[object Date]' ||
			input instanceof Date;
	}

	// compare two arrays, return the number of differences
	function compareArrays(array1, array2, dontConvert) {
		var len = Math.min(array1.length, array2.length),
			lengthDiff = Math.abs(array1.length - array2.length),
			diffs = 0,
			i;
		for (i = 0; i < len; i++) {
			if ((dontConvert && array1[i] !== array2[i]) ||
				(!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
				diffs++;
			}
		}
		return diffs + lengthDiff;
	}

	function normalizeUnits(units) {
		if (units) {
			var lowered = units.toLowerCase().replace(/(.)s$/, '$1');
			units = unitAliases[units] || camelFunctions[lowered] || lowered;
		}
		return units;
	}

	function normalizeObjectUnits(inputObject) {
		var normalizedInput = {},
			normalizedProp,
			prop;

		for (prop in inputObject) {
			if (inputObject.hasOwnProperty(prop)) {
				normalizedProp = normalizeUnits(prop);
				if (normalizedProp) {
					normalizedInput[normalizedProp] = inputObject[prop];
				}
			}
		}

		return normalizedInput;
	}

	function makeList(field) {
		var count, setter;

		if (field.indexOf('week') === 0) {
			count = 7;
			setter = 'day';
		} else if (field.indexOf('month') === 0) {
			count = 12;
			setter = 'month';
		} else {
			return;
		}

		moment[field] = function(format, index) {
			var i, getter,
				method = moment.fn._lang[field],
				results = [];

			if (typeof format === 'number') {
				index = format;
				format = undefined;
			}

			getter = function(i) {
				var m = moment().utc().set(setter, i);
				return method.call(moment.fn._lang, m, format || '');
			};

			if (index != null) {
				return getter(index);
			} else {
				for (i = 0; i < count; i++) {
					results.push(getter(i));
				}
				return results;
			}
		};
	}

	function toInt(argumentForCoercion) {
		var coercedNumber = +argumentForCoercion,
			value = 0;

		if (coercedNumber !== 0 && isFinite(coercedNumber)) {
			if (coercedNumber >= 0) {
				value = Math.floor(coercedNumber);
			} else {
				value = Math.ceil(coercedNumber);
			}
		}

		return value;
	}

	function daysInMonth(year, month) {
		return new Date(Date.UTC(year, month + 1, 0)).getUTCDate();
	}

	function daysInYear(year) {
		return isLeapYear(year) ? 366 : 365;
	}

	function isLeapYear(year) {
		return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
	}

	function checkOverflow(m) {
		var overflow;
		if (m._a && m._pf.overflow === -2) {
			overflow =
				m._a[MONTH] < 0 || m._a[MONTH] > 11 ? MONTH :
				m._a[DATE] < 1 || m._a[DATE] > daysInMonth(m._a[YEAR], m._a[MONTH]) ? DATE :
				m._a[HOUR] < 0 || m._a[HOUR] > 23 ? HOUR :
				m._a[MINUTE] < 0 || m._a[MINUTE] > 59 ? MINUTE :
				m._a[SECOND] < 0 || m._a[SECOND] > 59 ? SECOND :
				m._a[MILLISECOND] < 0 || m._a[MILLISECOND] > 999 ? MILLISECOND :
				-1;

			if (m._pf._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
				overflow = DATE;
			}

			m._pf.overflow = overflow;
		}
	}

	function isValid(m) {
		if (m._isValid == null) {
			m._isValid = !isNaN(m._d.getTime()) &&
				m._pf.overflow < 0 &&
				!m._pf.empty &&
				!m._pf.invalidMonth &&
				!m._pf.nullInput &&
				!m._pf.invalidFormat &&
				!m._pf.userInvalidated;

			if (m._strict) {
				m._isValid = m._isValid &&
					m._pf.charsLeftOver === 0 &&
					m._pf.unusedTokens.length === 0;
			}
		}
		return m._isValid;
	}

	function normalizeLanguage(key) {
		return key ? key.toLowerCase().replace('_', '-') : key;
	}

	// Return a moment from input, that is local/utc/zone equivalent to model.
	function makeAs(input, model) {
		return model._isUTC ? moment(input).zone(model._offset || 0) :
			moment(input).local();
	}

	/************************************
	    Languages
	************************************/

	extend(Language.prototype, {

		set: function(config) {
			var prop, i;
			for (i in config) {
				prop = config[i];
				if (typeof prop === 'function') {
					this[i] = prop;
				} else {
					this['_' + i] = prop;
				}
			}
		},

		_months: "一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月".split("_"),
		months: function(m) {
			return this._months[m.month()];
		},

		_monthsShort: "一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月".split("_"),
		monthsShort: function(m) {
			return this._monthsShort[m.month()];
		},

		monthsParse: function(monthName) {
			var i, mom, regex;

			if (!this._monthsParse) {
				this._monthsParse = [];
			}

			for (i = 0; i < 12; i++) {
				// make the regex if we don't have it already
				if (!this._monthsParse[i]) {
					mom = moment.utc([2000, i]);
					regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
					this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
				}
				// test the regex
				if (this._monthsParse[i].test(monthName)) {
					return i;
				}
			}
		},

		_weekdays: "星期日_星期一_星期二_星期三_星期四_星期五_星期六".split("_"),
		weekdays: function(m) {
			return this._weekdays[m.day()];
		},

		_weekdaysShort: "星期日_星期一_星期二_星期三_星期四_星期五_星期六".split("_"),
		weekdaysShort: function(m) {
			return this._weekdaysShort[m.day()];
		},

		_weekdaysMin: "周日_周一_周二_周三_周四_周五_周六".split("_"),
		weekdaysMin: function(m) {
			return this._weekdaysMin[m.day()];
		},

		weekdaysParse: function(weekdayName) {
			var i, mom, regex;

			if (!this._weekdaysParse) {
				this._weekdaysParse = [];
			}

			for (i = 0; i < 7; i++) {
				// make the regex if we don't have it already
				if (!this._weekdaysParse[i]) {
					mom = moment([2000, 1]).day(i);
					regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
					this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
				}
				// test the regex
				if (this._weekdaysParse[i].test(weekdayName)) {
					return i;
				}
			}
		},

		_longDateFormat: {
			LT: "h:mm A",
			L: "YYYY-MM-DD",
			LL: "MMMM D YYYY",
			LLL: "MMMM D YYYY LT",
			LLLL: "dddd, MMMM D YYYY LT"
		},
		longDateFormat: function(key) {
			var output = this._longDateFormat[key];
			if (!output && this._longDateFormat[key.toUpperCase()]) {
				output = this._longDateFormat[key.toUpperCase()].replace(/MMMM|MM|DD|dddd/g, function(val) {
					return val.slice(1);
				});
				this._longDateFormat[key] = output;
			}
			return output;
		},

		isPM: function(input) {
			// IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
			// Using charAt should be more compatible.
			return ((input + '').toLowerCase().charAt(0) === 'p');
		},

		_meridiemParse: /[ap]\.?m?\.?/i,
		meridiem: function(hours, minutes, isLower) {
			if (hours > 11) {
				return isLower ? 'pm' : 'PM';
			} else {
				return isLower ? 'am' : 'AM';
			}
		},

		_calendar: {
			sameDay: '[Today at] LT',
			nextDay: '[Tomorrow at] LT',
			nextWeek: 'dddd [at] LT',
			lastDay: '[Yesterday at] LT',
			lastWeek: '[Last] dddd [at] LT',
			sameElse: 'L'
		},
		calendar: function(key, mom) {
			var output = this._calendar[key];
			return typeof output === 'function' ? output.apply(mom) : output;
		},

		_relativeTime: {
			future: "in %s",
			past: "%s ago",
			s: "a few seconds",
			m: "a minute",
			mm: "%d minutes",
			h: "an hour",
			hh: "%d hours",
			d: "a day",
			dd: "%d days",
			M: "a month",
			MM: "%d months",
			y: "a year",
			yy: "%d years"
		},
		relativeTime: function(number, withoutSuffix, string, isFuture) {
			var output = this._relativeTime[string];
			return (typeof output === 'function') ?
				output(number, withoutSuffix, string, isFuture) :
				output.replace(/%d/i, number);
		},
		pastFuture: function(diff, output) {
			var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
			return typeof format === 'function' ? format(output) : format.replace(/%s/i, output);
		},

		ordinal: function(number) {
			return this._ordinal.replace("%d", number);
		},
		_ordinal: "%d",

		preparse: function(string) {
			return string;
		},

		postformat: function(string) {
			return string;
		},

		week: function(mom) {
			return weekOfYear(mom, this._week.dow, this._week.doy).week;
		},

		_week: {
			dow: 0, // Sunday is the first day of the week.
			doy: 6 // The week that contains Jan 1st is the first week of the year.
		},

		_invalidDate: 'Invalid date',
		invalidDate: function() {
			return this._invalidDate;
		}
	});

	// Loads a language definition into the `languages` cache.  The function
	// takes a key and optionally values.  If not in the browser and no values
	// are provided, it will load the language file module.  As a convenience,
	// this function also returns the language values.
	function loadLang(key, values) {
		values.abbr = key;
		if (!languages[key]) {
			languages[key] = new Language();
		}
		languages[key].set(values);
		return languages[key];
	}

	// Remove a language from the `languages` cache. Mostly useful in tests.
	function unloadLang(key) {
		delete languages[key];
	}

	// Determines which language definition to use and returns it.
	//
	// With no parameters, it will return the global language.  If you
	// pass in a language key, such as 'en', it will return the
	// definition for 'en', so long as 'en' has already been loaded using
	// moment.lang.
	function getLangDefinition(key) {
		var i = 0,
			j, lang, next, split,
			get = function(k) {
				if (!languages[k] && hasModule) {
					try {
						require('./lang/' + k);
					} catch (e) {
						console.info('error');
					}
				}
				return languages[k];
			};

		if (!key) {
			return moment.fn._lang;
		}

		if (!isArray(key)) {
			//short-circuit everything else
			lang = get(key);
			if (lang) {
				return lang;
			}
			key = [key];
		}

		//pick the language from the array
		//try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
		//substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
		while (i < key.length) {
			split = normalizeLanguage(key[i]).split('-');
			j = split.length;
			next = normalizeLanguage(key[i + 1]);
			next = next ? next.split('-') : null;
			while (j > 0) {
				lang = get(split.slice(0, j).join('-'));
				if (lang) {
					return lang;
				}
				if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) {
					//the next array item is better than a shallower substring of this one
					break;
				}
				j--;
			}
			i++;
		}
		return moment.fn._lang;
	}

	/************************************
	    Formatting
	************************************/

	function removeFormattingTokens(input) {
		if (input.match(/\[[\s\S]/)) {
			return input.replace(/^\[|\]$/g, "");
		}
		return input.replace(/\\/g, "");
	}

	function makeFormatFunction(format) {
		var array = format.match(formattingTokens),
			i, length;

		for (i = 0, length = array.length; i < length; i++) {
			if (formatTokenFunctions[array[i]]) {
				array[i] = formatTokenFunctions[array[i]];
			} else {
				array[i] = removeFormattingTokens(array[i]);
			}
		}

		return function(mom) {
			var output = "";
			for (i = 0; i < length; i++) {
				output += array[i] instanceof Function ? array[i].call(mom, format) : array[i];
			}
			return output;
		};
	}

	// format date using native date object
	function formatMoment(m, format) {

		if (!m.isValid()) {
			return m.lang().invalidDate();
		}

		format = expandFormat(format, m.lang());

		if (!formatFunctions[format]) {
			formatFunctions[format] = makeFormatFunction(format);
		}

		return formatFunctions[format](m);
	}

	function expandFormat(format, lang) {
		var i = 5;

		function replaceLongDateFormatTokens(input) {
			return lang.longDateFormat(input) || input;
		}

		localFormattingTokens.lastIndex = 0;
		while (i >= 0 && localFormattingTokens.test(format)) {
			format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
			localFormattingTokens.lastIndex = 0;
			i -= 1;
		}

		return format;
	}

	/************************************
	    Parsing
	************************************/

	// get the regex to find the next token
	function getParseRegexForToken(token, config) {
		var a, strict = config._strict;
		switch (token) {
			case 'DDDD':
				return parseTokenThreeDigits;
			case 'YYYY':
			case 'GGGG':
			case 'gggg':
				return strict ? parseTokenFourDigits : parseTokenOneToFourDigits;
			case 'Y':
			case 'G':
			case 'g':
				return parseTokenSignedNumber;
			case 'YYYYYY':
			case 'YYYYY':
			case 'GGGGG':
			case 'ggggg':
				return strict ? parseTokenSixDigits : parseTokenOneToSixDigits;
			case 'S':
				if (strict) {
					return parseTokenOneDigit;
				}
				break;
				/* falls through */
			case 'SS':
				if (strict) {
					return parseTokenTwoDigits;
				}
				break;
				/* falls through */
			case 'SSS':
				if (strict) {
					return parseTokenThreeDigits;
				}
				break;
				/* falls through */
			case 'DDD':
				return parseTokenOneToThreeDigits;
			case 'MMM':
			case 'MMMM':
			case 'dd':
			case 'ddd':
			case 'dddd':
				return parseTokenWord;
			case 'a':
			case 'A':
				return getLangDefinition(config._l)._meridiemParse;
			case 'X':
				return parseTokenTimestampMs;
			case 'Z':
			case 'ZZ':
				return parseTokenTimezone;
			case 'T':
				return parseTokenT;
			case 'SSSS':
				return parseTokenDigits;
			case 'MM':
			case 'DD':
			case 'YY':
			case 'GG':
			case 'gg':
			case 'HH':
			case 'hh':
			case 'mm':
			case 'ss':
			case 'ww':
			case 'WW':
				return strict ? parseTokenTwoDigits : parseTokenOneOrTwoDigits;
			case 'M':
			case 'D':
			case 'd':
			case 'H':
			case 'h':
			case 'm':
			case 's':
			case 'w':
			case 'W':
			case 'e':
			case 'E':
				return parseTokenOneOrTwoDigits;
			default:
				a = new RegExp(regexpEscape(unescapeFormat(token.replace('\\', '')), "i"));
				return a;
		}
	}

	function timezoneMinutesFromString(string) {
		string = string || "";
		var possibleTzMatches = (string.match(parseTokenTimezone) || []),
			tzChunk = possibleTzMatches[possibleTzMatches.length - 1] || [],
			parts = (tzChunk + '').match(parseTimezoneChunker) || ['-', 0, 0],
			minutes = +(parts[1] * 60) + toInt(parts[2]);

		return parts[0] === '+' ? -minutes : minutes;
	}

	// function to convert string input to date
	function addTimeToArrayFromToken(token, input, config) {
		var a, datePartArray = config._a;

		switch (token) {
			// MONTH
			case 'M': // fall through to MM
			case 'MM':
				if (input != null) {
					datePartArray[MONTH] = toInt(input) - 1;
				}
				break;
			case 'MMM': // fall through to MMMM
			case 'MMMM':
				a = getLangDefinition(config._l).monthsParse(input);
				// if we didn't find a month name, mark the date as invalid.
				if (a != null) {
					datePartArray[MONTH] = a;
				} else {
					config._pf.invalidMonth = input;
				}
				break;
				// DAY OF MONTH
			case 'D': // fall through to DD
			case 'DD':
				if (input != null) {
					datePartArray[DATE] = toInt(input);
				}
				break;
				// DAY OF YEAR
			case 'DDD': // fall through to DDDD
			case 'DDDD':
				if (input != null) {
					config._dayOfYear = toInt(input);
				}

				break;
				// YEAR
			case 'YY':
				datePartArray[YEAR] = toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
				break;
			case 'YYYY':
			case 'YYYYY':
			case 'YYYYYY':
				datePartArray[YEAR] = toInt(input);
				break;
				// AM / PM
			case 'a': // fall through to A
			case 'A':
				config._isPm = getLangDefinition(config._l).isPM(input);
				break;
				// 24 HOUR
			case 'H': // fall through to hh
			case 'HH': // fall through to hh
			case 'h': // fall through to hh
			case 'hh':
				datePartArray[HOUR] = toInt(input);
				break;
				// MINUTE
			case 'm': // fall through to mm
			case 'mm':
				datePartArray[MINUTE] = toInt(input);
				break;
				// SECOND
			case 's': // fall through to ss
			case 'ss':
				datePartArray[SECOND] = toInt(input);
				break;
				// MILLISECOND
			case 'S':
			case 'SS':
			case 'SSS':
			case 'SSSS':
				datePartArray[MILLISECOND] = toInt(('0.' + input) * 1000);
				break;
				// UNIX TIMESTAMP WITH MS
			case 'X':
				config._d = new Date(parseFloat(input) * 1000);
				break;
				// TIMEZONE
			case 'Z': // fall through to ZZ
			case 'ZZ':
				config._useUTC = true;
				config._tzm = timezoneMinutesFromString(input);
				break;
			case 'w':
			case 'ww':
			case 'W':
			case 'WW':
			case 'd':
			case 'dd':
			case 'ddd':
			case 'dddd':
			case 'e':
			case 'E':
				token = token.substr(0, 1);
				break;
				/* falls through */
			case 'gg':
			case 'gggg':
			case 'GG':
			case 'GGGG':
			case 'GGGGG':
				token = token.substr(0, 2);
				if (input) {
					config._w = config._w || {};
					config._w[token] = input;
				}
				break;
		}
	}

	// convert an array to a date.
	// the array should mirror the parameters below
	// note: all values past the year are optional and will default to the lowest possible value.
	// [year, month, day , hour, minute, second, millisecond]
	function dateFromConfig(config) {
		var i, date, input = [],
			currentDate,
			yearToUse, fixYear, w, temp, lang, weekday, week;

		if (config._d) {
			return;
		}

		currentDate = currentDateArray(config);

		//compute day of the year from weeks and weekdays
		if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
			fixYear = function(val) {
				var int_val = parseInt(val, 10);
				return val ?
					(val.length < 3 ? (int_val > 68 ? 1900 + int_val : 2000 + int_val) : int_val) :
					(config._a[YEAR] == null ? moment().weekYear() : config._a[YEAR]);
			};

			w = config._w;
			if (w.GG != null || w.W != null || w.E != null) {
				temp = dayOfYearFromWeeks(fixYear(w.GG), w.W || 1, w.E, 4, 1);
			} else {
				lang = getLangDefinition(config._l);
				weekday = w.d != null ? parseWeekday(w.d, lang) :
					(w.e != null ? parseInt(w.e, 10) + lang._week.dow : 0);

				week = parseInt(w.w, 10) || 1;

				//if we're parsing 'd', then the low day numbers may be next week
				if (w.d != null && weekday < lang._week.dow) {
					week++;
				}

				temp = dayOfYearFromWeeks(fixYear(w.gg), week, weekday, lang._week.doy, lang._week.dow);
			}

			config._a[YEAR] = temp.year;
			config._dayOfYear = temp.dayOfYear;
		}

		//if the day of the year is set, figure out what it is
		if (config._dayOfYear) {
			yearToUse = config._a[YEAR] == null ? currentDate[YEAR] : config._a[YEAR];

			if (config._dayOfYear > daysInYear(yearToUse)) {
				config._pf._overflowDayOfYear = true;
			}

			date = makeUTCDate(yearToUse, 0, config._dayOfYear);
			config._a[MONTH] = date.getUTCMonth();
			config._a[DATE] = date.getUTCDate();
		}

		// Default to current date.
		// * if no year, month, day of month are given, default to today
		// * if day of month is given, default month and year
		// * if month is given, default only year
		// * if year is given, don't default anything
		for (i = 0; i < 3 && config._a[i] == null; ++i) {
			config._a[i] = input[i] = currentDate[i];
		}

		// Zero out whatever was not defaulted, including time
		for (; i < 7; i++) {
			config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i];
		}

		// add the offsets to the time to be parsed so that we can have a clean array for checking isValid
		input[HOUR] += toInt((config._tzm || 0) / 60);
		input[MINUTE] += toInt((config._tzm || 0) % 60);

		config._d = (config._useUTC ? makeUTCDate : makeDate).apply(null, input);
	}

	function dateFromObject(config) {
		var normalizedInput;

		if (config._d) {
			return;
		}

		normalizedInput = normalizeObjectUnits(config._i);
		config._a = [
			normalizedInput.year,
			normalizedInput.month,
			normalizedInput.day,
			normalizedInput.hour,
			normalizedInput.minute,
			normalizedInput.second,
			normalizedInput.millisecond
		];

		dateFromConfig(config);
	}

	function currentDateArray(config) {
		var now = new Date();
		if (config._useUTC) {
			return [
				now.getUTCFullYear(),
				now.getUTCMonth(),
				now.getUTCDate()
			];
		} else {
			return [now.getFullYear(), now.getMonth(), now.getDate()];
		}
	}

	// date from string and format string
	function makeDateFromStringAndFormat(config) {

		config._a = [];
		config._pf.empty = true;

		// This array is used to make a Date, either with `new Date` or `Date.UTC`
		var lang = getLangDefinition(config._l),
			string = '' + config._i,
			i, parsedInput, tokens, token, skipped,
			stringLength = string.length,
			totalParsedInputLength = 0;

		tokens = expandFormat(config._f, lang).match(formattingTokens) || [];

		for (i = 0; i < tokens.length; i++) {
			token = tokens[i];
			parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0];
			if (parsedInput) {
				skipped = string.substr(0, string.indexOf(parsedInput));
				if (skipped.length > 0) {
					config._pf.unusedInput.push(skipped);
				}
				string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
				totalParsedInputLength += parsedInput.length;
			}
			// don't parse if it's not a known token
			if (formatTokenFunctions[token]) {
				if (parsedInput) {
					config._pf.empty = false;
				} else {
					config._pf.unusedTokens.push(token);
				}
				addTimeToArrayFromToken(token, parsedInput, config);
			} else if (config._strict && !parsedInput) {
				config._pf.unusedTokens.push(token);
			}
		}

		// add remaining unparsed input length to the string
		config._pf.charsLeftOver = stringLength - totalParsedInputLength;
		if (string.length > 0) {
			config._pf.unusedInput.push(string);
		}

		// handle am pm
		if (config._isPm && config._a[HOUR] < 12) {
			config._a[HOUR] += 12;
		}
		// if is 12 am, change hours to 0
		if (config._isPm === false && config._a[HOUR] === 12) {
			config._a[HOUR] = 0;
		}

		dateFromConfig(config);
		checkOverflow(config);
	}

	function unescapeFormat(s) {
		return s.replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function(matched, p1, p2, p3, p4) {
			return p1 || p2 || p3 || p4;
		});
	}

	// Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
	function regexpEscape(s) {
		return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
	}

	// date from string and array of format strings
	function makeDateFromStringAndArray(config) {
		var tempConfig,
			bestMoment,

			scoreToBeat,
			i,
			currentScore;

		if (config._f.length === 0) {
			config._pf.invalidFormat = true;
			config._d = new Date(NaN);
			return;
		}

		for (i = 0; i < config._f.length; i++) {
			currentScore = 0;
			tempConfig = extend({}, config);
			tempConfig._pf = defaultParsingFlags();
			tempConfig._f = config._f[i];
			makeDateFromStringAndFormat(tempConfig);

			if (!isValid(tempConfig)) {
				continue;
			}

			// if there is any input that was not parsed add a penalty for that format
			currentScore += tempConfig._pf.charsLeftOver;

			//or tokens
			currentScore += tempConfig._pf.unusedTokens.length * 10;

			tempConfig._pf.score = currentScore;

			if (scoreToBeat == null || currentScore < scoreToBeat) {
				scoreToBeat = currentScore;
				bestMoment = tempConfig;
			}
		}

		extend(config, bestMoment || tempConfig);
	}

	// date from iso format
	function makeDateFromString(config) {
		var i, l,
			string = config._i,
			match = isoRegex.exec(string);

		if (match) {
			config._pf.iso = true;
			for (i = 0, l = isoDates.length; i < l; i++) {
				if (isoDates[i][1].exec(string)) {
					// match[5] should be "T" or undefined
					config._f = isoDates[i][0] + (match[6] || " ");
					break;
				}
			}
			for (i = 0, l = isoTimes.length; i < l; i++) {
				if (isoTimes[i][1].exec(string)) {
					config._f += isoTimes[i][0];
					break;
				}
			}
			if (string.match(parseTokenTimezone)) {
				config._f += "Z";
			}
			makeDateFromStringAndFormat(config);
		} else {
			config._d = new Date(string);
		}
	}

	function makeDateFromInput(config) {
		var input = config._i,
			matched = aspNetJsonRegex.exec(input);

		if (input === undefined) {
			config._d = new Date();
		} else if (matched) {
			config._d = new Date(+matched[1]);
		} else if (typeof input === 'string') {
			makeDateFromString(config);
		} else if (isArray(input)) {
			config._a = input.slice(0);
			dateFromConfig(config);
		} else if (isDate(input)) {
			config._d = new Date(+input);
		} else if (typeof(input) === 'object') {
			dateFromObject(config);
		} else {
			config._d = new Date(input);
		}
	}

	function makeDate(y, m, d, h, M, s, ms) {
		//can't just apply() to create a date:
		//http://stackoverflow.com/questions/181348/instantiating-a-javascript-object-by-calling-prototype-constructor-apply
		var date = new Date(y, m, d, h, M, s, ms);

		//the date constructor doesn't accept years < 1970
		if (y < 1970) {
			date.setFullYear(y);
		}
		return date;
	}

	function makeUTCDate(y) {
		var date = new Date(Date.UTC.apply(null, arguments));
		if (y < 1970) {
			date.setUTCFullYear(y);
		}
		return date;
	}

	function parseWeekday(input, language) {
		if (typeof input === 'string') {
			if (!isNaN(input)) {
				input = parseInt(input, 10);
			} else {
				input = language.weekdaysParse(input);
				if (typeof input !== 'number') {
					return null;
				}
			}
		}
		return input;
	}

	/************************************
	    Relative Time
	************************************/

	// helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
	function substituteTimeAgo(string, number, withoutSuffix, isFuture, lang) {
		return lang.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
	}

	function relativeTime(milliseconds, withoutSuffix, lang) {
		var seconds = round(Math.abs(milliseconds) / 1000),
			minutes = round(seconds / 60),
			hours = round(minutes / 60),
			days = round(hours / 24),
			years = round(days / 365),
			args = seconds < 45 && ['s', seconds] ||
			minutes === 1 && ['m'] ||
			minutes < 45 && ['mm', minutes] ||
			hours === 1 && ['h'] ||
			hours < 22 && ['hh', hours] ||
			days === 1 && ['d'] ||
			days <= 25 && ['dd', days] ||
			days <= 45 && ['M'] ||
			days < 345 && ['MM', round(days / 30)] ||
			years === 1 && ['y'] || ['yy', years];
		args[2] = withoutSuffix;
		args[3] = milliseconds > 0;
		args[4] = lang;
		return substituteTimeAgo.apply({}, args);
	}

	/************************************
	    Week of Year
	************************************/

	// firstDayOfWeek       0 = sun, 6 = sat
	//                      the day of the week that starts the week
	//                      (usually sunday or monday)
	// firstDayOfWeekOfYear 0 = sun, 6 = sat
	//                      the first week is the week that contains the first
	//                      of this day of the week
	//                      (eg. ISO weeks use thursday (4))
	function weekOfYear(mom, firstDayOfWeek, firstDayOfWeekOfYear) {
		var end = firstDayOfWeekOfYear - firstDayOfWeek,
			daysToDayOfWeek = firstDayOfWeekOfYear - mom.day(),
			adjustedMoment;

		if (daysToDayOfWeek > end) {
			daysToDayOfWeek -= 7;
		}

		if (daysToDayOfWeek < end - 7) {
			daysToDayOfWeek += 7;
		}

		adjustedMoment = moment(mom).add('d', daysToDayOfWeek);
		return {
			week: Math.ceil(adjustedMoment.dayOfYear() / 7),
			year: adjustedMoment.year()
		};
	}

	//http://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
	function dayOfYearFromWeeks(year, week, weekday, firstDayOfWeekOfYear, firstDayOfWeek) {
		var d = makeUTCDate(year, 0, 1).getUTCDay(),
			daysToAdd, dayOfYear;

		weekday = weekday != null ? weekday : firstDayOfWeek;
		daysToAdd = firstDayOfWeek - d + (d > firstDayOfWeekOfYear ? 7 : 0) - (d < firstDayOfWeek ? 7 : 0);
		dayOfYear = 7 * (week - 1) + (weekday - firstDayOfWeek) + daysToAdd + 1;

		return {
			year: dayOfYear > 0 ? year : year - 1,
			dayOfYear: dayOfYear > 0 ? dayOfYear : daysInYear(year - 1) + dayOfYear
		};
	}

	/************************************
	    Top Level Functions
	************************************/

	function makeMoment(config) {
		var input = config._i,
			format = config._f;

		if (input === null) {
			return moment.invalid({
				nullInput: true
			});
		}

		if (typeof input === 'string') {
			config._i = input = getLangDefinition().preparse(input);
		}

		if (moment.isMoment(input)) {
			config = cloneMoment(input);

			config._d = new Date(+input._d);
		} else if (format) {
			if (isArray(format)) {
				makeDateFromStringAndArray(config);
			} else {
				makeDateFromStringAndFormat(config);
			}
		} else {
			makeDateFromInput(config);
		}

		return new Moment(config);
	}

	moment = function(input, format, lang, strict) {
		var c;

		if (typeof(lang) === "boolean") {
			strict = lang;
			lang = undefined;
		}
		// object construction must be done this way.
		// https://github.com/moment/moment/issues/1423
		c = {};
		c._isAMomentObject = true;
		c._i = input;
		c._f = format;
		c._l = lang;
		c._strict = strict;
		c._isUTC = false;
		c._pf = defaultParsingFlags();

		return makeMoment(c);
	};

	// creating with utc
	moment.utc = function(input, format, lang, strict) {
		var c;

		if (typeof(lang) === "boolean") {
			strict = lang;
			lang = undefined;
		}
		// object construction must be done this way.
		// https://github.com/moment/moment/issues/1423
		c = {};
		c._isAMomentObject = true;
		c._useUTC = true;
		c._isUTC = true;
		c._l = lang;
		c._i = input;
		c._f = format;
		c._strict = strict;
		c._pf = defaultParsingFlags();

		return makeMoment(c).utc();
	};

	// creating with unix timestamp (in seconds)
	moment.unix = function(input) {
		return moment(input * 1000);
	};

	// duration
	moment.duration = function(input, key) {
		var duration = input,
			// matching against regexp is expensive, do it on demand
			match = null,
			sign,
			ret,
			parseIso;

		if (moment.isDuration(input)) {
			duration = {
				ms: input._milliseconds,
				d: input._days,
				M: input._months
			};
		} else if (typeof input === 'number') {
			duration = {};
			if (key) {
				duration[key] = input;
			} else {
				duration.milliseconds = input;
			}
		} else if (!!(match = aspNetTimeSpanJsonRegex.exec(input))) {
			sign = (match[1] === "-") ? -1 : 1;
			duration = {
				y: 0,
				d: toInt(match[DATE]) * sign,
				h: toInt(match[HOUR]) * sign,
				m: toInt(match[MINUTE]) * sign,
				s: toInt(match[SECOND]) * sign,
				ms: toInt(match[MILLISECOND]) * sign
			};
		} else if (!!(match = isoDurationRegex.exec(input))) {
			sign = (match[1] === "-") ? -1 : 1;
			parseIso = function(inp) {
				// We'd normally use ~~inp for this, but unfortunately it also
				// converts floats to ints.
				// inp may be undefined, so careful calling replace on it.
				var res = inp && parseFloat(inp.replace(',', '.'));
				// apply sign while we're at it
				return (isNaN(res) ? 0 : res) * sign;
			};
			duration = {
				y: parseIso(match[2]),
				M: parseIso(match[3]),
				d: parseIso(match[4]),
				h: parseIso(match[5]),
				m: parseIso(match[6]),
				s: parseIso(match[7]),
				w: parseIso(match[8])
			};
		}

		ret = new Duration(duration);

		if (moment.isDuration(input) && input.hasOwnProperty('_lang')) {
			ret._lang = input._lang;
		}

		return ret;
	};

	// version number
	moment.version = VERSION;

	// default format
	moment.defaultFormat = isoFormat;

	// This function will be called whenever a moment is mutated.
	// It is intended to keep the offset in sync with the timezone.
	moment.updateOffset = function() {};

	// This function will load languages and then set the global language.  If
	// no arguments are passed in, it will simply return the current global
	// language key.
	moment.lang = function(key, values) {
		var r;
		if (!key) {
			return moment.fn._lang._abbr;
		}
		if (values) {
			loadLang(normalizeLanguage(key), values);
		} else if (values === null) {
			unloadLang(key);
			key = 'en';
		} else if (!languages[key]) {
			getLangDefinition(key);
		}
		r = moment.duration.fn._lang = moment.fn._lang = getLangDefinition(key);
		return r._abbr;
	};

	// returns language data
	moment.langData = function(key) {
		if (key && key._lang && key._lang._abbr) {
			key = key._lang._abbr;
		}
		return getLangDefinition(key);
	};

	// compare moment object
	moment.isMoment = function(obj) {
		return obj instanceof Moment ||
			(obj != null && obj.hasOwnProperty('_isAMomentObject'));
	};

	// for typechecking Duration objects
	moment.isDuration = function(obj) {
		return obj instanceof Duration;
	};

	for (i = lists.length - 1; i >= 0; --i) {
		makeList(lists[i]);
	}

	moment.normalizeUnits = function(units) {
		return normalizeUnits(units);
	};

	moment.invalid = function(flags) {
		var m = moment.utc(NaN);
		if (flags != null) {
			extend(m._pf, flags);
		} else {
			m._pf.userInvalidated = true;
		}

		return m;
	};

	moment.parseZone = function(input) {
		return moment(input).parseZone();
	};

	/************************************
	    Moment Prototype
	************************************/

	extend(moment.fn = Moment.prototype, {

		clone: function() {
			return moment(this);
		},

		valueOf: function() {
			return +this._d + ((this._offset || 0) * 60000);
		},

		unix: function() {
			return Math.floor(+this / 1000);
		},

		toString: function() {
			return this.clone().lang('en').format("ddd MMM DD YYYY HH:mm:ss [GMT]ZZ");
		},

		toDate: function() {
			return this._offset ? new Date(+this) : this._d;
		},

		toISOString: function() {
			var m = moment(this).utc();
			if (0 < m.year() && m.year() <= 9999) {
				return formatMoment(m, 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
			} else {
				return formatMoment(m, 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
			}
		},

		toArray: function() {
			var m = this;
			return [
				m.year(),
				m.month(),
				m.date(),
				m.hours(),
				m.minutes(),
				m.seconds(),
				m.milliseconds()
			];
		},

		isValid: function() {
			return isValid(this);
		},

		isDSTShifted: function() {

			if (this._a) {
				return this.isValid() && compareArrays(this._a, (this._isUTC ? moment.utc(this._a) : moment(this._a)).toArray()) > 0;
			}

			return false;
		},

		parsingFlags: function() {
			return extend({}, this._pf);
		},

		invalidAt: function() {
			return this._pf.overflow;
		},

		utc: function() {
			return this.zone(0);
		},

		local: function() {
			this.zone(0);
			this._isUTC = false;
			return this;
		},

		format: function(inputString) {
			var output = formatMoment(this, inputString || moment.defaultFormat);
			return this.lang().postformat(output);
		},

		add: function(input, val) {
			var dur;
			// switch args to support add('s', 1) and add(1, 's')
			if (typeof input === 'string') {
				dur = moment.duration(+val, input);
			} else {
				dur = moment.duration(input, val);
			}
			addOrSubtractDurationFromMoment(this, dur, 1);
			return this;
		},

		subtract: function(input, val) {
			var dur;
			// switch args to support subtract('s', 1) and subtract(1, 's')
			if (typeof input === 'string') {
				dur = moment.duration(+val, input);
			} else {
				dur = moment.duration(input, val);
			}
			addOrSubtractDurationFromMoment(this, dur, -1);
			return this;
		},

		diff: function(input, units, asFloat) {
			var that = makeAs(input, this),
				zoneDiff = (this.zone() - that.zone()) * 6e4,
				diff, output;

			units = normalizeUnits(units);

			if (units === 'year' || units === 'month') {
				// average number of days in the months in the given dates
				diff = (this.daysInMonth() + that.daysInMonth()) * 432e5; // 24 * 60 * 60 * 1000 / 2
				// difference in months
				output = ((this.year() - that.year()) * 12) + (this.month() - that.month());
				// adjust by taking difference in days, average number of days
				// and dst in the given months.
				output += ((this - moment(this).startOf('month')) -
					(that - moment(that).startOf('month'))) / diff;
				// same as above but with zones, to negate all dst
				output -= ((this.zone() - moment(this).startOf('month').zone()) -
					(that.zone() - moment(that).startOf('month').zone())) * 6e4 / diff;
				if (units === 'year') {
					output = output / 12;
				}
			} else {
				diff = (this - that);
				output = units === 'second' ? diff / 1e3 : // 1000
					units === 'minute' ? diff / 6e4 : // 1000 * 60
					units === 'hour' ? diff / 36e5 : // 1000 * 60 * 60
					units === 'day' ? (diff - zoneDiff) / 864e5 : // 1000 * 60 * 60 * 24, negate dst
					units === 'week' ? (diff - zoneDiff) / 6048e5 : // 1000 * 60 * 60 * 24 * 7, negate dst
					diff;
			}
			return asFloat ? output : absRound(output);
		},

		from: function(time, withoutSuffix) {
			return moment.duration(this.diff(time)).lang(this.lang()._abbr).humanize(!withoutSuffix);
		},

		fromNow: function(withoutSuffix) {
			return this.from(moment(), withoutSuffix);
		},

		calendar: function() {
			// We want to compare the start of today, vs this.
			// Getting start-of-today depends on whether we're zone'd or not.
			var sod = makeAs(moment(), this).startOf('day'),
				diff = this.diff(sod, 'days', true),
				format = diff < -6 ? 'sameElse' :
				diff < -1 ? 'lastWeek' :
				diff < 0 ? 'lastDay' :
				diff < 1 ? 'sameDay' :
				diff < 2 ? 'nextDay' :
				diff < 7 ? 'nextWeek' : 'sameElse';
			return this.format(this.lang().calendar(format, this));
		},

		isLeapYear: function() {
			return isLeapYear(this.year());
		},

		isDST: function() {
			return (this.zone() < this.clone().month(0).zone() ||
				this.zone() < this.clone().month(5).zone());
		},

		day: function(input) {
			var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
			if (input != null) {
				input = parseWeekday(input, this.lang());
				return this.add({
					d: input - day
				});
			} else {
				return day;
			}
		},

		month: function(input) {
			var utc = this._isUTC ? 'UTC' : '',
				dayOfMonth;

			if (input != null) {
				if (typeof input === 'string') {
					input = this.lang().monthsParse(input);
					if (typeof input !== 'number') {
						return this;
					}
				}

				dayOfMonth = this.date();
				this.date(1);
				this._d['set' + utc + 'Month'](input);
				this.date(Math.min(dayOfMonth, this.daysInMonth()));

				moment.updateOffset(this);
				return this;
			} else {
				return this._d['get' + utc + 'Month']();
			}
		},

		startOf: function(units) {
			units = normalizeUnits(units);
			// the following switch intentionally omits break keywords
			// to utilize falling through the cases.
			switch (units) {
				case 'year':
					this.month(0);
					break;
					/* falls through */
				case 'month':
					this.date(1);
					break;
					/* falls through */
				case 'week':
				case 'isoWeek':
				case 'day':
					this.hours(0);
					/* falls through */
				case 'hour':
					this.minutes(0);
					break;
					/* falls through */
				case 'minute':
					this.seconds(0);
					break;
					/* falls through */
				case 'second':
					this.milliseconds(0);
					/* falls through */
			}

			// weeks are a special case
			if (units === 'week') {
				this.weekday(0);
			} else if (units === 'isoWeek') {
				this.isoWeekday(1);
			}

			return this;
		},

		endOf: function(units) {
			units = normalizeUnits(units);
			return this.startOf(units).add((units === 'isoWeek' ? 'week' : units), 1).subtract('ms', 1);
		},

		isAfter: function(input, units) {
			units = typeof units !== 'undefined' ? units : 'millisecond';
			return +this.clone().startOf(units) > +moment(input).startOf(units);
		},

		isBefore: function(input, units) {
			units = typeof units !== 'undefined' ? units : 'millisecond';
			return +this.clone().startOf(units) < +moment(input).startOf(units);
		},

		isSame: function(input, units) {
			units = units || 'ms';
			return +this.clone().startOf(units) === +makeAs(input, this).startOf(units);
		},

		min: function(other) {
			other = moment.apply(null, arguments);
			return other < this ? this : other;
		},

		max: function(other) {
			other = moment.apply(null, arguments);
			return other > this ? this : other;
		},

		zone: function(input) {
			var offset = this._offset || 0;
			if (input != null) {
				if (typeof input === "string") {
					input = timezoneMinutesFromString(input);
				}
				if (Math.abs(input) < 16) {
					input = input * 60;
				}
				this._offset = input;
				this._isUTC = true;
				if (offset !== input) {
					addOrSubtractDurationFromMoment(this, moment.duration(offset - input, 'm'), 1, true);
				}
			} else {
				return this._isUTC ? offset : this._d.getTimezoneOffset();
			}
			return this;
		},

		zoneAbbr: function() {
			return this._isUTC ? "UTC" : "";
		},

		zoneName: function() {
			return this._isUTC ? "Coordinated Universal Time" : "";
		},

		parseZone: function() {
			if (this._tzm) {
				this.zone(this._tzm);
			} else if (typeof this._i === 'string') {
				this.zone(this._i);
			}
			return this;
		},

		hasAlignedHourOffset: function(input) {
			if (!input) {
				input = 0;
			} else {
				input = moment(input).zone();
			}

			return (this.zone() - input) % 60 === 0;
		},

		daysInMonth: function() {
			return daysInMonth(this.year(), this.month());
		},

		dayOfYear: function(input) {
			var dayOfYear = round((moment(this).startOf('day') - moment(this).startOf('year')) / 864e5) + 1;
			return input == null ? dayOfYear : this.add("d", (input - dayOfYear));
		},

		quarter: function() {
			return Math.ceil((this.month() + 1.0) / 3.0);
		},

		weekYear: function(input) {
			var year = weekOfYear(this, this.lang()._week.dow, this.lang()._week.doy).year;
			return input == null ? year : this.add("y", (input - year));
		},

		isoWeekYear: function(input) {
			var year = weekOfYear(this, 1, 4).year;
			return input == null ? year : this.add("y", (input - year));
		},

		week: function(input) {
			var week = this.lang().week(this);
			return input == null ? week : this.add("d", (input - week) * 7);
		},

		isoWeek: function(input) {
			var week = weekOfYear(this, 1, 4).week;
			return input == null ? week : this.add("d", (input - week) * 7);
		},

		weekday: function(input) {
			var weekday = (this.day() + 7 - this.lang()._week.dow) % 7;
			return input == null ? weekday : this.add("d", input - weekday);
		},

		isoWeekday: function(input) {
			// behaves the same as moment#day except
			// as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
			// as a setter, sunday should belong to the previous week.
			return input == null ? this.day() || 7 : this.day(this.day() % 7 ? input : input - 7);
		},

		get: function(units) {
			units = normalizeUnits(units);
			return this[units]();
		},

		set: function(units, value) {
			units = normalizeUnits(units);
			if (typeof this[units] === 'function') {
				this[units](value);
			}
			return this;
		},

		// If passed a language key, it will set the language for this
		// instance.  Otherwise, it will return the language configuration
		// variables for this instance.
		lang: function(key) {
			if (key === undefined) {
				return this._lang;
			} else {
				this._lang = getLangDefinition(key);
				return this;
			}
		}
	});

	// helper for adding shortcuts
	function makeGetterAndSetter(name, key) {
		moment.fn[name] = moment.fn[name + 's'] = function(input) {
			var utc = this._isUTC ? 'UTC' : '';
			if (input != null) {
				this._d['set' + utc + key](input);
				moment.updateOffset(this);
				return this;
			} else {
				return this._d['get' + utc + key]();
			}
		};
	}

	// loop through and add shortcuts (Month, Date, Hours, Minutes, Seconds, Milliseconds)
	for (i = 0; i < proxyGettersAndSetters.length; i++) {
		makeGetterAndSetter(proxyGettersAndSetters[i].toLowerCase().replace(/s$/, ''), proxyGettersAndSetters[i]);
	}

	// add shortcut for year (uses different syntax than the getter/setter 'year' == 'FullYear')
	makeGetterAndSetter('year', 'FullYear');

	// add plural methods
	moment.fn.days = moment.fn.day;
	moment.fn.months = moment.fn.month;
	moment.fn.weeks = moment.fn.week;
	moment.fn.isoWeeks = moment.fn.isoWeek;

	// add aliased format methods
	moment.fn.toJSON = moment.fn.toISOString;

	/************************************
	    Duration Prototype
	************************************/

	extend(moment.duration.fn = Duration.prototype, {

		_bubble: function() {
			var milliseconds = this._milliseconds,
				days = this._days,
				months = this._months,
				data = this._data,
				seconds, minutes, hours, years;

			// The following code bubbles up values, see the tests for
			// examples of what that means.
			data.milliseconds = milliseconds % 1000;

			seconds = absRound(milliseconds / 1000);
			data.seconds = seconds % 60;

			minutes = absRound(seconds / 60);
			data.minutes = minutes % 60;

			hours = absRound(minutes / 60);
			data.hours = hours % 24;

			days += absRound(hours / 24);
			data.days = days % 30;

			months += absRound(days / 30);
			data.months = months % 12;

			years = absRound(months / 12);
			data.years = years;
		},

		weeks: function() {
			return absRound(this.days() / 7);
		},

		valueOf: function() {
			return this._milliseconds +
				this._days * 864e5 +
				(this._months % 12) * 2592e6 +
				toInt(this._months / 12) * 31536e6;
		},

		humanize: function(withSuffix) {
			var difference = +this,
				output = relativeTime(difference, !withSuffix, this.lang());

			if (withSuffix) {
				output = this.lang().pastFuture(difference, output);
			}

			return this.lang().postformat(output);
		},

		add: function(input, val) {
			// supports only 2.0-style add(1, 's') or add(moment)
			var dur = moment.duration(input, val);

			this._milliseconds += dur._milliseconds;
			this._days += dur._days;
			this._months += dur._months;

			this._bubble();

			return this;
		},

		subtract: function(input, val) {
			var dur = moment.duration(input, val);

			this._milliseconds -= dur._milliseconds;
			this._days -= dur._days;
			this._months -= dur._months;

			this._bubble();

			return this;
		},

		get: function(units) {
			units = normalizeUnits(units);
			return this[units.toLowerCase() + 's']();
		},

		as: function(units) {
			units = normalizeUnits(units);
			return this['as' + units.charAt(0).toUpperCase() + units.slice(1) + 's']();
		},

		lang: moment.fn.lang,

		toIsoString: function() {
			// inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
			var years = Math.abs(this.years()),
				months = Math.abs(this.months()),
				days = Math.abs(this.days()),
				hours = Math.abs(this.hours()),
				minutes = Math.abs(this.minutes()),
				seconds = Math.abs(this.seconds() + this.milliseconds() / 1000);

			if (!this.asSeconds()) {
				// this is the same as C#'s (Noda) and python (isodate)...
				// but not other JS (goog.date)
				return 'P0D';
			}

			return (this.asSeconds() < 0 ? '-' : '') +
				'P' +
				(years ? years + 'Y' : '') +
				(months ? months + 'M' : '') +
				(days ? days + 'D' : '') +
				((hours || minutes || seconds) ? 'T' : '') +
				(hours ? hours + 'H' : '') +
				(minutes ? minutes + 'M' : '') +
				(seconds ? seconds + 'S' : '');
		}
	});

	function makeDurationGetter(name) {
		moment.duration.fn[name] = function() {
			return this._data[name];
		};
	}

	function makeDurationAsGetter(name, factor) {
		moment.duration.fn['as' + name] = function() {
			return +this / factor;
		};
	}

	for (i in unitMillisecondFactors) {
		if (unitMillisecondFactors.hasOwnProperty(i)) {
			makeDurationAsGetter(i, unitMillisecondFactors[i]);
			makeDurationGetter(i.toLowerCase());
		}
	}

	makeDurationAsGetter('Weeks', 6048e5);
	moment.duration.fn.asMonths = function() {
		return (+this - this.years() * 31536e6) / 2592e6 + this.years() * 12;
	};

	/************************************
	    Default Lang
	************************************/

	// Set default language, other languages will inherit from English.
	moment.lang('en', {
		ordinal: function(number) {
			var b = number % 10,
				output = (toInt(number % 100 / 10) === 1) ? 'th' :
				(b === 1) ? 'st' :
				(b === 2) ? 'nd' :
				(b === 3) ? 'rd' : 'th';
			return number + output;
		}
	});

	/* EMBED_LANGUAGES */

	/************************************
	    Exposing Moment
	************************************/

	function makeGlobal(deprecate) {
		var warned = false,
			local_moment = moment;
		/*global ender:false */
		if (typeof ender !== 'undefined') {
			return;
		}
		// here, `this` means `window` in the browser, or `global` on the server
		// add `moment` as a global object via a string identifier,
		// for Closure Compiler "advanced" mode
		if (deprecate) {
			global.moment = function() {
				if (!warned && console && console.warn) {
					warned = true;
					console.warn(
						"Accessing Moment through the global scope is " +
						"deprecated, and will be removed in an upcoming " +
						"release.");
				}
				return local_moment.apply(null, arguments);
			};
			extend(global.moment, local_moment);
		} else {
			global['moment'] = moment;
		}
	}

	// CommonJS module is defined
	if (hasModule) {
		module.exports = moment;
		makeGlobal(true);
	} else if (typeof define === "function" && define.amd) {
		define("moment", function(require, exports, module) {
			if (module.config && module.config() && module.config().noGlobal !== true) {
				// If user provided noGlobal, he is aware of global
				makeGlobal(module.config().noGlobal === undefined);
			}

			return moment;
		});
	} else {
		makeGlobal();
	}
}).call(this);